LCD Programmable Touch Screen green backlight Digital Under floor Heating Room Thermostat Working Mode On/Off, Floating, Modulating or Multi-functions Programmability Non-programmable & Programmable (5+2 days,6+1 days, 7 days 3 periods) Internal Sensor Setting Range 5C-35C (programmable) Setting unit: 0.5/step, Indication Accuracy 0.1C Power supply: 85-250VAC 50/60 HZ